# What is a constricting actuator called?

I'm looking for search terms, I'd like to find something like an electric hose clamp - a high-force, low-power, low-speed, motorized constricting mechanism.

I already googled some terms various combinations of constricting constrictor mechanism mechanical actuator squeezing -snake, have not been fruitful. Is there a term I am missing?

• Explain what you need to do. – Solar Mike Oct 2 '20 at 20:57